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Radiant|Lab Grown|IGI

15.03ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG848623811

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG848623811

Diamond specifications and retailer prices

From £2,476 GBP
$3,322 USD
As of November 1, 2026
Save £8,866 GBP (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £11,342 GBP at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 15.03ct lab-grown radiant diamond

This 15.03ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848623811 or 848623811. Listed at 3 retailers as of November 1, 2026, with prices from £2,476 to £11,342, a £8,866 spread on the same certified stone. Brilliant Earth lists it at £11,342. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

15.03
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848623811
Dimensions17.40 × 12.02 × 8.18 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.40 mm12.02 mm15.03 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848623811
Side View
Table 68.0%Crown 46.4°Girdle: Slightly ThickPavilion 35.5°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £11,342 GBP|Low: £2,476 GBP|High: £13,033 GBP|Avg: £6,605 GBP|-13.0%
Brilliant Earth
Retailer 2
Retailer 3
November 3, 2026
Retailer 3£2,476 GBP
Retailer 2£3,453 GBP
Brilliant Earth£11,342 GBP

12 data points across 3 retailers

3 retailers£2,476 GBP to £11,342 GBP

A
Cheapest Retailer
-
£2,476 GBP
$3,322 USD
Final sale: no returns
A
Retailer 2
-
£3,453 GBP
View
Most Expensive
B
Brilliant Earth
22238156A · Nov 1
£11,342 GBP
$15,220 USD
View
2 more retailers have this diamond
Prices start from £2,476 GBPSave up to £8,866 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
15.03ct Radiant
£2,476 GBP